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234002140 = 22518616287
BaseRepresentation
bin11011111001010…
…01011011011100
3121022022112120221
431330221123130
5434401032030
635115251124
75540661661
oct1574513334
9538275527
10234002140
111100a72a9
1266449aa4
1339630b08
1423113a68
1515823e7a
hexdf296dc

234002140 has 24 divisors (see below), whose sum is σ = 491746752. Its totient is φ = 93535680.

The previous prime is 234002113. The next prime is 234002177. The reversal of 234002140 is 41200432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34077 + ... + 40363.

It is an arithmetic number, because the mean of its divisors is an integer number (20489448).

Almost surely, 2234002140 is an apocalyptic number.

234002140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234002140 is an abundant number, since it is smaller than the sum of its proper divisors (257744612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

234002140 is a wasteful number, since it uses less digits than its factorization.

234002140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8157 (or 8155 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 234002140 is about 15297.1284887066. The cubic root of 234002140 is about 616.2258932868.

Adding to 234002140 its reverse (41200432), we get a palindrome (275202572).

The spelling of 234002140 in words is "two hundred thirty-four million, two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1861 3722 6287 7444 9305 12574 18610 25148 31435 37220 62870 125740 11700107 23400214 46800428 58500535 117001070 234002140